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Finding the Fourth Proportional to 237.42, 354.53 and 225.57

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Solution

The fourth proportional to 237.42, 354.53 and 225.57 is: 336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.42 : 354.53 = 225.57 : x
  2. Step 2: Convert to fraction form
    237.42/354.53 = 225.57/x
  3. Step 3: Cross multiply
    237.42x = 354.53 × 225.57
  4. Step 4: Simplify right side
    237.42x = 79,971.33
  5. Step 5: Solve for x
    x = 79,971.33/237.42
  6. Step 6: Final answer
    x = 336.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.